Improvement in car-couplings



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Car-Couplings.

Patented Feb. 10,1874.

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- MPW 'UNITED STATES WILLIAM C. T. DAVIDSON,

PATENT @Tirion OF IIANNIBAL, MISSOURI.

IMPROVEMENT IN CAR-COUPLHHGS..l

Specification forming part of Letters Patent No.14l7,309, dated February 10, 1874; application tiled December 17, 1873.

Y To all whom 'it may concern:

Be it known that I, W. C. T. DAVIDSON, of the city of Hannibal, county of Marion and State of Missouri, have invented certain new and useful Improvements in Railway Gar Couplings; and do hereby declare the following specification to be a full and accurate description of the same, reference being had to the annexed drawing making a part thereof.

My invention relates to that class of carcouplings called automatic or self couplers.

Figure l of the drawing represents a longitudinal vertical section of the coupling complete; Fig. 2, a horizontal section of the same, and Fig. 3 a front view. l

A reference to the drawing and to the following description will enable the skilled mechanic to construct and put the same together. Ais a cast or wrought iron or steel box, called a draw-head7 B is a wrought-iron or steel dog, with a-curved latch-head, having a spring inserted in a cleft or split at the rear end of the dog. g is an incline in the rear end of the hollow chamber of the draw-head, so that when the dog B is placed in position to admit the coupling-link, the spring x will rest on the projection g, as shown in the drawing. C is a bolt, running through the draw-head A and dog B, in such a manner as to hold the dog B in its proper position, as illustrated in Fig. 1. D is a link of iron or steel, connecting2 by means of the dog B, the draw-head A of one car with a corresponding drawhead of another car, or with any other draw-head using a link-connection.

These several parts above described form the car-coupling complete, and the process of coupling two cars together by means of the same is by inserting the link D within the jaws c c of draw-head'A, and, by a slight push or shove, causing the head of the dog B to rise sufficiently to permit the said 'link to pass under and be caught by the catch of said dog, marked y, the said dog then holding the link irmly in its place in a horizontal position, with one end of the link resting against the projections S S on the inner sides of the drawhead A, in such a manner as to prevent the link from moving farther back within the chamber of the draw-head A. Now cause the two cars to be shoved together, and the link D will strike the inclined head of thel dog B in the corresponding draw-head upon the other car, causing the said dog to rise and catch the link, as rst described, indraw-head A.

To disconnect or uncouple the ears, pull upon the chain E, fastened to the head of the dog B. This raises the dog B sufficiently to enable the link to pass out when the cars are pushed or pulled apart, thus forming a safe and secure coupling, and one that can be operated without the necessity of a man going between the'cars, to the imminent risk of life or limb.

What I claim, and desire to secure by Letters Patent, isi The hook B, having rear spring m, in combi nation with the draw-head having the incline g, as described.

, XV. C. T. DAVIDSON fitnessesz C. N. CLARK, M. G. SELLECK. 

